Mild Feeling to Pee. Ovulation week) ?

I have this mild, extremely mild, feeling of wanting to pee for every one hour after I've had sex. This feeling lasts for a day at most. And whenever I do pee, I pee a lot in terms of quantity as well. There's no other form of discomfort. There's no pain, no urgency. I also drink a lot of water, to flush out any little bacteria. I was on a monthly course of Nitrofuratoin for Urinary tract infection till the end of April, and I show no signs of a similar infection. And I've always had protected sex. I had my period 8 days ago. I want to know if this mild sensation is alright or if it's something to worry about. And it isn't an urgent feeling at all. Also, is it okay to have protected sex on the 9th and 10th day of your period (during the ovulation week)?